Water-cooling heat dissipation loop applied to energy storage module

Abstract

The utility model relates to the technical field of cooling devices, in particular to a water-cooling heat dissipation loop applied to an energy storage module, which comprises an alloy body, a water inlet header pipe, a water outlet header pipe and a plurality of sections of heat exchange pipes, the alloy body is coated outside the heat exchange pipes after being poured and solidified, and a plurality of accommodating grooves are formed in the alloy body. The plurality of sections of heat exchange pipes are used for embedding a plurality of columnar batteries in different accommodating grooves in an interference fit manner respectively, so that the outer walls of the batteries are tightly attached to the groove walls of the accommodating grooves, each section of heat exchange pipe is spiral and spirally surrounds the peripheral sides of the plurality of accommodating grooves respectively, and the two ends of the plurality of sections of heat exchange pipes are communicated with the water inlet header pipe and the water outlet header pipe respectively; and a water outlet valve is arranged between the water outlet main pipe and each heat exchange pipe. Compared with the prior art, the battery can be inserted into the accommodating groove formed in the alloy body, so that the battery can be conveniently separated from heat dissipation during use and can be conveniently recycled, the heat exchange tube is spirally arranged on the peripheral side of the accommodating groove, the alloy body and the heat exchange tube can be in full contact, and the heat exchange efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling devices, and in particular to a water-cooling heat dissipation circuit applied to an energy storage module. Background Art

[0002] With the construction of new power systems based on new energy, energy storage equipment has been used more and more widely. When charging and discharging, energy storage battery modules will generate heat. If the heat is not dissipated in time, it will affect the operation of the battery module and the entire energy storage system, and even cause accidents. With the development of power electronics, the requirements for the integration of equipment are getting higher and higher. For energy storage equipment, the power density is required to be higher and higher, and the volume is getting smaller and smaller. Water-cooled energy storage solves this problem very well. Because water-cooled energy storage uses water as a cooling medium, it has a fast cooling speed, good heat dissipation performance, and good cooling effect on the battery, so water-cooled loads are more and more widely used.

[0003] At present, most energy storage equipment uses air cooling for heat dissipation. Air cooling has high requirements for the design of air ducts. When there are many battery packs stacked in the battery cabinet or the distance between adjacent battery packs is small, it is easy to cause uneven temperature distribution between battery packs. When a water cooling system is used, the water cooling pipes crisscross in the battery cabinet, which takes up a lot of internal space of the battery cabinet.

[0004] Therefore, a storage battery cabinet as disclosed in the Chinese patent document with publication number CN217009385U has emerged, including: a cabinet, provided with a battery module area and an electrical control area; multiple battery modules, arranged in the battery module area, and a heat exchange pipe is arranged on the outside of each battery module; a PCS module, arranged in the electrical control area; a cluster control box, arranged in the electrical control area; a water cooling system, located in the battery module area, including a first water distributor arranged on the inner wall of the cabinet, multiple water inlet pipes connected to the first water distributor, a second water distributor arranged on the inner wall of the cabinet, and multiple water outlet pipes connected to the second water distributor, the water inlet pipes are respectively connected to the water inlet end of the heat exchange pipe, and the water outlet pipes are respectively connected to the water outlet end of the heat exchange pipe; a water cooling unit, the first water distributor is connected to the water outlet of the water cooling unit, and the second water distributor is connected to the water inlet of the water cooling unit. The setting of the water cooling system effectively improves the utilization rate of the internal space of the cabinet, and at the same time, the PCS module is integrated in the cabinet, making the structure more compact. When the energy storage battery cabinet is working, the cooling medium in the water cooling unit enters the first water distributor, and then the cooling medium enters each water inlet pipe from the first water distributor, and enters the heat exchange pipe of each battery module through the water inlet pipe, exchanges heat with the battery module, and plays a role in cooling. After the heat exchange, the cooling medium converges into the second water distributor again, and finally flows back to the water cooling unit from the second water distributor to realize heat replacement.

[0005] As can be seen from the above, cooling water is supplied to the battery module through water inlet pipes arranged in parallel, and a separate heat exchange pipe needs to be set in the battery module. On the one hand, the separate heat exchange pipe of the battery module is not convenient to disassemble, and the heat exchange pipe is not convenient to reuse when the battery is idle after power is consumed; on the other hand, the heat exchange pipe of the existing battery module is generally arranged in a straight line beside the heating device, with a small contact area and low heat exchange efficiency. Summary of the invention

[0006] In view of the above technical problems existing in the prior art, the utility model provides a water-cooling heat dissipation circuit applied to an energy storage module.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] Provided is a water-cooling heat dissipation circuit for an energy storage module, comprising an alloy body, a water inlet main pipe, a water outlet main pipe and a plurality of sections of heat exchange tubes. The alloy body is cast and solidified and then coated on the outside of the heat exchange tubes. The alloy body forms a plurality of accommodating grooves for respectively inserting a plurality of columnar batteries in different accommodating grooves with interference fit, so that the outer wall of the battery is closely fitted with the groove wall of the accommodating groove. Each section of the heat exchange tube is spiral-shaped and spirally wound around the circumference of the plurality of accommodating grooves. Both ends of the plurality of sections of the heat exchange tubes are respectively connected to the water inlet main pipe and the water outlet main pipe; a water outlet valve is provided between the water outlet main pipe and each heat exchange tube.

[0009] Specifically, the water inlet main pipe and the water outlet main pipe are arranged in parallel, and the multiple sections of heat exchange tubes are arranged in parallel beside the water inlet main pipe and the water outlet main pipe.

[0010] Specifically, the alloy body is an aluminum alloy.

[0011] Specifically, the heat exchange tube is a copper tube.

[0012] Specifically, a clearance groove is reserved in the middle of the alloy body, a water inlet main pipe and a water outlet main pipe are arranged through the clearance groove, and a water outlet valve is located in the clearance groove.

[0013] Specifically, the spiral diameter of the heat exchange tube decreases along the water flow direction.

[0014] Specifically, the diameter of the heat exchange tube gradually increases along the water flow direction.

[0015] Specifically, the opening of the receiving groove faces upward, and the depth of the receiving groove is adapted to the height of the battery.

[0016] Specifically, the outer wall of the heat exchange tube is provided with fins, and the fins are distributed along the length direction of the heat exchange tube.

[0017] Specifically, the fins fix two adjacent circles of the heat exchange tube.

[0018] Beneficial effects of the utility model:

[0019] The utility model discloses a water-cooling heat dissipation circuit applied to an energy storage module. Compared with the prior art, an accommodating groove provided on an alloy body is used for inserting a battery, so that the battery can be easily separated from the heat dissipation during use, and is convenient for repeated use. Moreover, a heat exchange tube is spirally arranged on the peripheral side of the accommodating groove, and the alloy body and the heat exchange tube can be fully in contact with each other, thereby improving the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the structure of a water cooling heat dissipation circuit applied to an energy storage module in an embodiment.

[0021] Figure 2 1 is an exploded view of a water cooling heat dissipation circuit applied to an energy storage module in an embodiment.

[0022] Figure 3 This is a schematic diagram of the water cooling heat dissipation circuit in the embodiment with the alloy body hidden.

[0023] Figure 4 Schematic diagram of the heat exchange tube in the embodiment.

[0024] Reference numerals:

[0025] Alloy body 1, receiving groove 11, giving way groove 12;

[0026] Inlet main pipe 2, outlet main pipe 3, heat exchange pipe 4;

[0027] Water outlet valve 5. DETAILED DESCRIPTION

[0028] The present invention is described in detail below in conjunction with specific embodiments and drawings.

[0029] A water cooling circuit for energy storage module in this embodiment is as follows: Figures 1 to 4As shown, it includes an alloy body 1, a water inlet main pipe 2, a water outlet main pipe 3 and multiple sections of heat exchange tubes 4. After the alloy body 1 is poured and solidified, it is coated on the outside of the heat exchange tube 4, and the alloy body 1 forms multiple receiving grooves 11, which are used for multiple columnar batteries to be respectively inserted into different receiving grooves 11 with interference fit, so that the outer wall of the battery is closely fitted with the groove wall of the receiving groove 11, and the multiple receiving grooves 11 are arranged in two rows. Each section of the heat exchange tube 4 is spiral, and is spirally wrapped around the circumference of the multiple receiving grooves 11, and the two ends of the multiple sections of the heat exchange tube 4 are respectively connected to the water inlet main pipe 2 and the water outlet main pipe 3. It can be seen from the figure that the two ends of the heat exchange tube 4 include straight pipe sections, which are used to extend and connect the water inlet main pipe 2 and the water outlet main pipe 3. A water outlet valve 5 is arranged between the water outlet main pipe 3 and each heat exchange tube 4, which is used to individually control the on-off of each heat exchange tube 4 and the flow of coolant. The water inlet main pipe 2 and the water outlet main pipe 3 are arranged in parallel, and multiple sections of heat exchange tubes 4 are arranged in parallel beside the water inlet main pipe 2 and the water outlet main pipe 3. Similarly, multiple heat exchange tubes 4 are arranged in two rows following multiple containing tanks 11. Of course, in practice, other track arrangements can be changed as needed. The purpose is to save space, be compact as a whole, and not affect heat exchange and heat dissipation.

[0030] In this embodiment, the alloy body 1 is an aluminum alloy, which is convenient for hot melting and solidification. Specifically, the heat exchange tube 4 is a copper tube, which has high heat exchange efficiency with the alloy body 1.

[0031] In this embodiment, a clearance groove 12 is reserved in the middle of the alloy body 1, the water inlet main pipe 2 and the water outlet main pipe 3 are arranged through the clearance groove 12, and the water outlet valve 5 is located in the clearance groove 12 for easy installation.

[0032] In this embodiment, the spiral diameter of the heat exchange tube 4 is uniform, which is convenient for manufacturing. In practice, it can be changed to: the spiral diameter of the heat exchange tube 4 is reduced along the direction of water flow, which is equivalent to the heat exchange tube 4 being farther away from the inner wall of the receiving tank 11 at the beginning, and the closer the heat exchange tube 4 is to the inner wall of the receiving tank 11 as it goes down, because the temperature of the cooling water is low when it just enters the heat exchange tube 4, and the heat exchange efficiency is high, so the heat exchange efficiency can be guaranteed even if the distance is farther, and the water temperature in the heat exchange tube 4 is higher as it goes down, and the closer it is to the receiving tank 11, so it is easier to fully absorb heat. Secondly, this can also make the heat exchange tubes 4 of different circles staggered to avoid heat accumulation. Similarly, it can also be set in practice: the diameter of the heat exchange tube 4 gradually increases along the direction of water flow. Under the premise of the same flow rate, the smaller the diameter, the faster the flow rate, and the larger the diameter, the smaller the flow rate. At the beginning, the water temperature in the heat exchange tube 4 is low, the heat exchange efficiency is high, and the flow is faster; the water temperature rises later, the heat exchange efficiency becomes lower, and the flow is slower to extend the heat exchange time.

[0033] In this embodiment, the opening of the receiving groove 11 faces upward, and the depth of the receiving groove 11 is adapted to the height of the battery. When in use, the energy storage battery is inserted into the receiving groove 11, the battery is basically embedded in the receiving groove 11, and the two terminals on the top of the battery extend out of the receiving groove 11.

[0034] In practice, fins (not shown) can be provided on the outer wall of the heat exchange tube 4. The fins are distributed along the length direction of the heat exchange tube 4. The fins fix two adjacent circles of the heat exchange tube 4 to avoid spiral extrusion deformation of the heat exchange tube 4 when pouring hot-melt aluminum alloy.

[0035] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] The standard parts used in the utility model can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt the conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A water cooling heat dissipation circuit applied to an energy storage module, characterized in that: It includes an alloy body, a water inlet main pipe, a water outlet main pipe and multiple sections of heat exchange tubes. After the alloy body is cast and solidified, it is coated on the outside of the heat exchange tubes, and the alloy body forms multiple accommodating grooves for multiple columnar batteries to be respectively embedded in different accommodating grooves with interference fit, so that the outer wall of the battery is tightly fitted with the groove wall of the accommodating groove. Each section of the heat exchange tube is spiral and spirally wrapped around the circumference of the multiple accommodating grooves. The two ends of the multiple sections of the heat exchange tubes are respectively connected to the water inlet main pipe and the water outlet main pipe; a water outlet valve is arranged between the water outlet main pipe and each heat exchange tube.

2. The water cooling heat dissipation circuit for energy storage module according to claim 1 is characterized in that: The water inlet main pipe and the water outlet main pipe are arranged in parallel, and the multiple sections of heat exchange tubes are arranged in parallel beside the water inlet main pipe and the water outlet main pipe.

3. The water cooling heat dissipation circuit for energy storage module according to claim 1 is characterized in that: The alloy body is aluminum alloy.

4. The water cooling heat dissipation circuit for energy storage module according to claim 1 is characterized in that: The heat exchange tubes are copper tubes.

5. The water cooling heat dissipation circuit for energy storage module according to claim 1 is characterized in that: A clearance groove is reserved in the middle of the alloy body, a water inlet main pipe and a water outlet main pipe are arranged through the clearance groove, and a water outlet valve is located in the clearance groove.

6. The water cooling heat dissipation circuit for energy storage module according to claim 1 is characterized in that: The spiral diameter of the heat exchange tube decreases along the direction of water flow.

7. The water cooling heat dissipation circuit for energy storage module according to claim 1 is characterized in that: The diameter of the heat exchange tube gradually increases along the water flow direction.

8. The water cooling heat dissipation circuit for energy storage module according to claim 1 is characterized in that: The opening of the receiving groove faces upward, and the depth of the receiving groove is adapted to the height of the battery.

9. The water cooling heat dissipation circuit for energy storage module according to claim 1 is characterized in that: The outer wall of the heat exchange tube is provided with fins, and the fins are distributed along the length direction of the heat exchange tube.

10. The water cooling heat dissipation circuit for energy storage module according to claim 9, characterized in that: The fins fix two adjacent circles of the heat exchange tube.

Images